Grain drier



eh 25,1930. P. F. NORMANDEAU GRAIN DRIER Filed April 25, 1928 2Sheets-Sheet Y Inventor 567% fl a wflrzz 2 1930- RF. NORMANDEAU1,748,519

GRAIN DRIER Filed April 25, 1928 2 Sheets-Sheet 2.

1 threshing machine,

Patented Feb. 25, 1930 PATENT] oFFIcE rararcn r. 'nonalannaaufor RONAN,mon'rma GRAIN DRIER Application mea April 25, 1928. Serial No. 272,718.

The'present invention relates to grain drying apparatus adapted'particularly for use in connection with the drying of wheatdur-g ing theharvesting of the same, and to remove 15 any moisture therefrom, so asto place the grain in a proper condition for storing.

A further object of the invention-is to provide an apparatus of thischaracter adapted for attachment to the grain. harvester or so that thegrain, upon being threshe'd may be fed into the drier and dischargedtherefrom into a suitable conveyor or receptacle for delivery to thegrainary.

i 15 I A stillfurthei' object of the invention is to rovide means forutilizing the exhaustgases rom the engine, used for operat n thethresher to provide the; heat for the ryu'ig operation.

-Another object is to provide "an ordinary heating attachment to furnishheat'to the drier should the exhaust gas from the en- 'ne beinsufficient for this pur ose.

A still'further object of the invention is to rovide an apparatusof thischaracter of a simple andpractical construction, which is efiicient andreliable in performance, which may be easily and conveniently in--stalled in operative position upon the thresher, and which is otherwisewell adapted for the purposes I intended.

Other objects of the invention will become apparent during the course ofthe following" 85 taken inconnection drawings forming a and in whichdrawdetailed description, with the accompanying part of thisapplication,

111?: A igure 1 1s a apparatus with trating the partition formed in t edrier for retaimng the heat in the bottom portion thereon. Figure'2 is atherethrough;

1 Figure 3 is taken substantially ure 2, and

Figure 4 is a similar view, taken along the line 4-4 of Figure 1. g

side elevational view of the a transverse sectional view,

on the line 3-3 of Figtion of the upper end of the body is arrangedexhaust manifold 15 of an internal combusfor which the same is.

parts broken awa and illus- Referring now to the drawings in detail, theinvention comprises a drying apparatus composed of a cylindrical body 5,having 'ends 6 and 7 respectively to close the body,

each of said ends having concentrically arranged bearings formed thereinfor rotatably supporting a screw shaft 8, upon which a screw conveyor 8is mounted. .Atone poran intake openmg 9 and at its opposite end at thelower portion therof is formed a dis: charge spout 10.' The graindepositedinto the body 5, by Way of the intake opening 9 is conveyedlongitudinally of the body toward the discharge spout'lO, from which thegrain is discharged.

Moved about the body!) is a jacket 11 of a slightly larger diameterwhereby to arrange its walls in spaced relation from the walls of thebody and provide an air space therebetween. Arranged over the endportion 7 is a hollow casting havinga mouth 13 formed at its lower edgeandto which is connected an exhaustpipe'extension 14 leading from thetion engine 16, provided for operating the thresher or other harvestingmachine upon which the drier is mounted.

The adjacent end of the shaft 8 extends through the hollow casting 12and outwardly so thereof with its outer end provided with a. sprocketwheel 17 and adapted for operative connection with the drive shaft ofthe engine, whereby to operate the screw conveyor 8'." The interior ofthe casting 12 communicates with the space between the walls of the body5 and jacket 11, so that the exhaustlgases from the engine may be fedinto such space for heating the body. 7 However, the upper portion ofthe airspace between the body and jacket and its connection with theinterior of the casting 12 is closed by n leans of an areaate branchstrip 18 suitably secured to the longitudinal sectional viewupperportion of the castin so as to prevent the heated exhaust gases fi omentering the upper portion of the air space. Also, at each side of thebody 5 is arranged a horizontally disposed partition 19 rearwardly ofthe body from the ends of the strip 18 and adapted to closecommunication between the upper and we .lower portions of the air spacebetween the body and jacket, so as to cause the exhaust gases tocirculate at the lower portion of the body and to travel rearwardly withrespect 5 thereto and out of a stack carried at the upper portion of thejacket 11. As clearly illustrated in Figure 1 of the drawings, the rearends of the partitions 19 at each side of the body terminate short ofthe end of the jacket and incline slightly upwardly shortly of the stack20, so that the exhaust gases may pass freely therefrom. The exhaustmanifold 15 of theengine is also provided with an auxiliary exhaust pipe21, each of the exhaust pipes l l and 21 having control valves 22arranged therein to control'the amount of gases permitted-to'gpass intoeach, of the exhaust pipes. The exhaust pipe 21 is adapted to'exhaustthe gase's into the atmosphere. Should 0 the exhaust gases from theengine be insufficient to properl heat the drier, a burner 23 may beattache at the mouth 13 of the casting 12, said burner having a fuelsupply pipe 24, connected thereto for feeding fuel to the j 25 burnerfrom. the fuel reservoir 25. Supporting legs or braces 26 are arrangedadjacent each end of the drier for suitably attaching the same inoperative position upon the harvesting machine. It will be apparent froman the foregoing that the drier may be operatively mounted upon thethresher in a convenient position for receiving the grain for feedinginto the intake 9, whereupon the grain will be thoroughly dried as thesame is conveyed through the body 5 and thus permit the grain to bestored, without danger of deterioration.

, It is obvious that the invention is susceptible of various changes andmodifications,

without departing from the spirit or scope of the invention orsacrificing any of its advantages, and I accordingly claim all suchforms of the device to which I am entitled.

Having thus described my invention, what I claim as new is: 1. A graindrier comprising a cylindrical body havin intake and discharge portsarranged in tiie opposite ends thereof, a screw conveyor operativelymounted within the body, a jacket disposed entirely about the sidewallsof the body with its walls in spaced relation from the walls of saidbody, means for supplying heated air from the space between the body ofthe jacket, at the end thereof adjacent the intake port, a dischargeport for the j acket, at the opposite end thereof, and a partitionarranged at each side of the body for closing the space between the sameand the jacket and adapted to cause the heated air to circulate at thelower side of said body, said partition terminating, short of thedischarge end of the body whereby to admit the heated air from the lowerpart of the body into the jacketed space about the upper part of thebody 2. A grain drier comprising a cylindrical body having intake anddischarge ports arranged at the opposite ends,'a jacket mount- I ed onthe body and extending entirely about the side walls thereof in spacedrelation from the walls of said body whereby to provide an air spacebetween said walls, a screw conveyor operatively arranged in the body,

means for feeding heated air into the space between the body and thejacket at the'end thereof provided with theintake port, a control forthe air feed ineans for regulating the volume of heated air admittedinto the jacket,

a stack carried by the jacket at its opposite end and forming adischarge portthereof,

said jacket being closed at its upper portion and the air intake end,and a pair of partitions arranged at opposite sides of the body andextending longitudinally thereof whereby to direct the heated airagainst the lower portion of the body, said partitions being connectedattheir forward ends with the lower edges of the closed portion of thejacket PATRICK F. NORMANDEAU.

